江苏影视频道广告价格:usually often sometimes 的用法是什么

频度副词是副词的一种
常用的有四个,即always, usually,often,sometimes。

现将它们的用法归纳如下:
一、频度副词在句中的位置。
频度副词在句中习惯上位于be动词、助动词之后,行为动词之前。
如: 1.She is often late for school.她上学经常迟到。
2.He usually goes to bed at about 12.他通常(午夜)十二点钟睡觉。 3.When do you usually get up in the morning?早上你通常什么时候起床？
sometimes是个特殊的频度副词,既可以放在be动词、助动词之后,行为动词之前,也可以放在句首,还可以放在句尾。
如:
1.I sometimes think that it is a great mistake.我有时想这是一个大错。
2.Sometimes I help my mother in the house.有时候我帮助妈妈做家务。 often可以放在句中,也可放在句尾,习惯上不放在句首。
如: We have been there quite often.我们经常到那儿去。

这些频度副词的位置与句中谓语动词有无助动词有关。句中没有助动词时,副词置于动词be之后,其它动词之前。

二、表示频度方面的区别。 always是频度最大的词,意为"总是；永远"。如: I shall always remember my first day at school.我将永远记住我上学的第一天。 usually意为"通常",即很少例外,频度仅次于always。如: What do you usually have for breakfast?你通常早餐吃什么？ often意为"经常",在频度上不如usually那么频繁。
如: Li Ping often does his homework in the afternoon.李平经常在下午做作业。
sometimes意为"有时候",频度比often小,表示动作偶尔发生,间断较大。
如: 1.I sometimes go to the library.我有时去图书馆。
2.Sometimes I read a book in the evening.我有时在晚上看书。

三、频度副词与not连用时,表示部分否定；对频度副词进行提问时,要用how often。如:
1.A great scholar is not always a very wise man.大学者未必一定是极聪明的人。
2.We go to the cinema sometimes.(对划线部分提问)
How often do you go to the cinema?

always
al-=all全，都；way方式，方法；道路
[5C:lweIz]
adv
总是
He always comes late
他总是迟到。
永远
I shall always remember my first day at school.
我将永远记住我上学的第一天。
usually
usual + -ly
[5ju:VJElI]
adv
通常，经常

usual
[5ju:VuEl]
adj.
通常的; 常 见的; 常有的
平常的, 普通的
平时的, 平日的
惯例的
He arrived late as usual.
他照常迟到。
It is below the usual size.
它不足一般尺寸。
Tea is considered to be the usual drink of British people.
茶被认为是英国人的日常饮料。
He said all the usual things.
他讲的都是老一套。

often
oft“常常”的异体字
[5Rf(E)n; (?@) 5C:fn]
adv
多次； 时常
How often do you go there?
你多久去那里一次？
How often you have been abroad? No often, only twice.
你出国几次了？不多，只出去过两次。
经常；通常
Children often dislike homework.
孩子们通常都不喜欢家庭作业。
He often does this.'
它经常干这种事。'

sometimes
some某一+ time时间
[5sQmtaImz]
adv
有时，时不时地，间或
I sometimes think that it is a great mistake.
我有时想这是一个大错。
Sometimes I help my mother in the house.
有时候我帮助妈妈做家务。
Sometimes the 'classroom' is a Mississippi riverboat.
"有时候,教室就在密西西比河上的汽船上。"
"Sometimes, when Billy is sick, his older brother has to deliver the newspapers."
"有时毕利病倒了,他的哥哥就得去送报纸。"

用于一般现在时.